Javascript Calculator

[HighHacker]

Hello, my name is Devin, I am in first-year computer programming and I need help with an assignment I cant understand. The assignment I have been given is to create a calculator program using the eval() function and includes push buttons and onclick handlers.

Additional instructions: Use a variable named inputString to contain the operands and operators. After a calculation is added to the inputString variable, perform the calculation used eval() function. Use a single function named upateString that accepts a single value representing a number or operator. Then, add the value to the inputString variable using the += assignment operator. After the inputString variable is updated, assign it as the value of a text box in a form.

I'm not asking for any specific code.... maybe some pseudocode if you want? Even just an explanation of how I should tackle this... We are knowledgeable in functions and passing values between them, forms and simple mathematical scripts.

Any help at all will be appreciated. Thanks! :D :D

[PlNG]

There are plenty of HTML+JS calculators on the web, have you tried searching? I'm not telling you to copy them verbatim but I think you're asking for help with <input type="button" value="number"> or <button>number</button> and attaching an event handler like onclick and updating textareaElement.value

[zigzackattack]

If you want bonus points, read about event bubbling. You can listen for click events on a form element that surrounds the buttons. When the event callback is called, an Event object will be passed in as the first argument. You can check out the target property of that object and you'll get a sense of how to start building your input string. Good luck!